Asthma Emergency Department Visits: Volume and Median Length of Stay

Identifying Attributes

Care Settings
Hospital Care
Country
Canada
Publishing Organisation
Canadian Institute for Health Information (CIHI)
Type of Quality Indicator
Outcome
IOM Quality Dimension
Effectiveness
Domain
Descriptive

Defining Attributes

Definition

This indicator provides the number of emergency department (ED) visits and median length of stay (in minutes) for asthma. The length of stay is the time elapsed from the patient's registration to the time he or she physically leaves the ED.

Numerator

Number of ED visits and median length of stay for asthma.

Denominator

This QI reports the number of cases and median.

Exclusions

Visits from non-participating ED facilities, scheduled ED visits where Scheduled ED Visit Indicator = Y or ED Visit Indicator = 0 (as of 2011–2012), records where sex is categorised as undifferentiated (as of 2012–2013), records with invalid length of stay or patient registered but left without being seen or triaged (Visit Disposition = 02 from 2013–2014 to 2017–2018, and Visit Disposition = 61 as of 2018–2019), duplicate records that were identified using all data elements except the following: amcarekey, abstractidnumber and date_recorded.

Use of Risk Adjustment
No
Risk Adjustments

None

Stratifications

By triage level, visit disposition, age and sex.

Data Attributes

Type of Data Collection
Electronic/paper chart records
Data Collection Methods

National Ambulatory Care Reporting System (NACRS)

Frequency of Data Collection
Annually
Frequency of Data Collection in Days
365
Reporting Methods

Available online at: www.cihi.ca/en/quick-stats

Reporting Frequency
Annually
Reporting Frequency in Days
365
Indicator Has Recommended Targets
No

Source and Reference Attributes

Link to Measurement Tools
Quality Indicator Confirmed to be Part of a Program Used to Monitor Quality and Safety of Care Among Older People at a Population-Level between 2012-2022
Yes
Assessed by the Australian Consortium for Aged Care Collaborators as Generally Containing Good Properties (Importance and Scientific Acceptability)
No
Australian Consortium for Aged Care Endorsed
No
Identified by PHARMA-Care Project
No
Upload Date
23 July 2025